's Image Gallery

Niggliite: PtSn  
Insizwaite: Pt(Bi,Sb)2

Comments: B&W image of a polished section showing insizwaite grain (I) showing details of niggliite (N) inclusions and exsolved chalcopyrite (C) lamellae in the pentlandite (P). (MinMag, v38:299).
Location: Insizwa deposit, Waterfall Gorge, Pondoland and East Griqualand areas (Transkei), South Africa. Scale: See Image.
© Mineralogical Magazine

Nikischerite: NaFe++6Al3(SO4)2(OH)18(H2O)12

Comments: Yellowish green nikischerite on matrix.
Location: Huanuni Mine, Dalence Province, Bolivia. Scale: Crystal size 5 mm.
© Tom Loomis / Dakota Matrix

Nikischerite: NaFe++6Al3(SO4)2(OH)18(H2O)12

Comments: Tony Nikischer, Chairman of the Board of The Hudson Institute of Mineralogy, president of Excalibur Mineral Corporation, and the person whom nikischerite is named for, kindly provided the pronunciation of the mineral nikischerite.
Location: Executive Inn hotel, Room 128, Tucson, Feburary 9, 2004. Scale: NA.
© Dave Barthelmy

Niksergievite: [Ba,Ca)2(Al,Si)7O10(CO3)(OH)6·nH2O

Comments: Pale blue to colorless lamellar fragment of niksergievite.
Location: Tekeli mine, Karatau, Kazakhstan. Scale: See Image.
© Rruff Database

Nimite: (Ni,Mg,Fe++)5Al(Si3Al)O10(OH)8

Comments: Dark green nimite aggregates on white calcite.
Location: Planalto, Rio Grande do Sol, Brazil. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Ningyoite: (U,Ca,Ce)2(PO4)2·1-2(H2O)

Comments: Greenish-black fine grained ningyoite masses with minor rock.
Location: Ningyo-Toge Mine, Okayama, Japan. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Niningerite: (Mg,Fe++,Mn)S

Comments: PPL reflected light polished section showing light gray-brownish grains of troilite (Tr) with white niningerite (Nin) and dark silicates.
Location: Indarch meteorite, Shusha, Elizavetpol, Azerbaidshan. Scale: Picture Size 0.28 mm.
© Thomas Witzke

Nioboaeschynite-(Ce): (Ce,Ca)(Nb,Ti)2(O,OH)6

Comments: Opaque, resinous crystal fragment of nioboaeschynite-(Ce).
Location: Bayan Obo deposit, Darhan Muminggan United Banner, Baotou League, Inner Mongolia Autonomous Region, China. Scale: Picture Size 1 cm.
© Jeff Weissman / Photographic Guide to Mineral Species

Nioboaeschynite-(Y): [(Y,REE),Ca,Th,Fe](Nb,Ti,Ta)2(O,OH)6

Comments: BSE image of a nioboaeschynite-(Y) grain. (CanMin, v46:395).
Location: Bear Lake Diggings, Bancroft area, Ontario, Canada. Scale: See Image.
© Canadian Mineralogist

Niobocarbide: (Nb,Ta)C

Comments: Small metallic grain of niobocarbide.
Location: Nizhne-Tagil'skoye (Mednorudyanskoye) Cu Deposit, Nizhnii Tagil, Sverdlovskaya Oblast', Urals Region, Russia. Scale: Grain size 0.3 mm.
© Thomas Witzke / Abraxas-Verlag

Niobokupletskite: K2Na(Mn,Zn,Fe)7(Nb,Zr,Ti)2Si8O26(OH)4(O,F)  
Kupletskite: K2Na(Mn,Fe++)7(Ti,Nb)2Si8O26(OH)4F

Comments: Back-scattered electron image of Niobokupletskite (Nkpt) rimming kupletskite (Kpt). The zoning in the kupletskite is from Nb-poor to Nb-rich in the direction of the arrow (dark to medium gray). (CanMin v 38, p 628).
Location: Mont Saint-Hilaire, Quebec, Canada. Scale: Scale bar 100 µ-m.
© Canadian Mineralogist

Niobophyllite: K2Na(Fe++,Mn)7(Nb,Ti)2Si8O26(OH)4(F,O)

Comments: Blackish-brown resinous to silky fibrous niobophyllite coatings on quartz.
Location: Seal Lake area, Labrador, Newfoundland, Canada. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Niocalite: Ca14Nb2(Si2O7)4O6F2

Comments: Yellowish brown crystal prisms of niocalite in a carbonatite rock matrix.
Location: Oka, Oka complex, Deux-Montagnes Co., Québec, Canada. Scale: Crystal length 1 cm.
© Jeff Weissman / Photographic Guide to Mineral Species

Nissonite: Cu2Mg2(PO4)2(OH)2·5(H2O)

Comments: Pale blue nissonite crusts on rock.
Location: Panoche Valley, San Benito County, California, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Niter: KNO3

Comments: Tan to white crystalline granular niter.
Location: Buffalo River Valley, Searcy County, Arkansas, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Nitratine: NaNO3  
Iquiqueite: K3Na4Mg(Cr++++++O4)B24O39(OH)·12(H2O)

Comments: Yellow iquiqueiite in clear, massive nitration.
Location: Salar de Miraje, Antofagasta, Chile. Scale: Picture size 5 mm.
© Thomas Witzke / Abraxas-Verlag

Nitratine: NaNO3

Comments: Euhedral crystalline aggregate of nitratine.
Location: Taltal, Antofagasta, Chile. Scale: Picture size 5 mm.
© Thomas Witzke / Abraxas-Verlag

Nitromagnesite: Mg(NO3)2·6(H2O)

Comments: Tan crystalline nitromagnesite grain, deliquescent.
Location: Baume, Jura, France. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Niveolanite: NaBe(CO3)(OH)·2H2O

Comments: Typical wool-like aggregate of fibrous niveolanite on albite (dark particles are fragments of bituminous films). (CanMinv,v46:1343).
Location: Poudrette quarry, Mont Saint-Hilaire, Rouville County, Québec, Canada. Scale: See Image.
© I.V. Pekov & A.V. Kasatkin

Nobleite: CaB6O9(OH)2·3(H2O)

Comments: Platy nobleite microcrystals on colemanite.
Location: Corkscrew Mine, Corkscrew Canyon, Death Valley, Inyo County, California, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species